Patent application number | Description | Published |
20090327758 | STORAGE APPARATUS AND DATA PROCESSING METHOD FOR STORAGE APPARATUS - A storage apparatus is provided, which allows a user to properly use an encrypted text and a plain text even when the storage apparatus has an encrypting function. An adaptor controlling transmission and reception of data to and from a memory device is provided with an encrypting function. Data requiring no encryption is transmitted to an adaptor having no encrypting function, and data to be encrypted is transmitted to the adaptor having an encrypting function. Thus, a user of the storage apparatus can properly use an encrypted text and a plain text. | 12-31-2009 |
20100031062 | Storage Device and Data Processing Method of Storage Device - The present invention provides a storage device and a data processing method of the storage device which can prevent leaking of data attributed to stealing or taking out of a disk device. A storage device includes: a plurality of disk adapters each of which is connected to HDDs which constitutes at least one RAID group; and a management part which manages a storage area provided by the plurality of HDD in a state that the storage area is divided into a plurality of logical storage areas, and manages the plurality of RAID groups. The management part sets an encryption state indicative of whether or not the data is to be encrypted with respect to the RAID group when all of the disk adapters connected to the HDD which belong to the RAID group are the encryption adapters the data, and the encryption adapter encrypts, based on the encryption state set with respect to the RAID group, and stores the encrypted data in the HDD. | 02-04-2010 |
20100306465 | STORAGE SYSTEM COMPRISING PLURALITY OF PROCESSOR UNITS - The present invention allows load balancing between processor units without impacting the I/O performance of the storage system. An LDEV owner right is changed on the basis of static information that does not dynamically change in accordance with the number of I/O commands relating to a LDEV. This information is a load index determined for each LDEV. Any of a plurality of processor units selects a processor unit that is to be an assignment destination of the owner right of a target LDEV, based on the load index that has been assigned to each processor unit and the load index of the target LDEV, and assigns this owner right to the selected processor unit. The load index assigned to the processor unit is a value based on the load index of one or more LDEV respectively corresponding to one or more owner rights assigned to this processor unit. | 12-02-2010 |
20110225345 | Storage System Having Volatile Memory and Non-Volatile Memory - The present invention allows a save target stored in a volatile memory, to be reliably saved to a non-volatile memory and reduces the time required for the save processing as much as possible. The charging state of a battery is regularly of irregularly checked. It is determined, according to the checked charging state, which information element stored in the volatile memory should be made a save target at the time of the occurrence of a power interruption. Among a plurality of information elements stored in the volatile memory, a predetermined information element is made a non-save target of save processing, according to a state related to the predetermined information element. | 09-15-2011 |
20120117321 | STORAGE SYSTEM AND OWNERSHIP CONTROL METHOD FOR STORAGE SYSTEM - When a failure has occurred, the situation is dealt with promptly according to this invention. As triggered by detection of a failure in any specified processor package of a plurality of processor packages, a processor for the specified processor package is temporarily substituted with a processor for another processor package, as an assignment destination of ownership which is assigned to the processor for the specified processor package, instead of actually transferring the ownership, thereby making the transition to an ownership-substituted state; and as triggered by an event that the failure is no longer detected in the specified processor package, a processor for the other processor package cancels the ownership-substituted state. | 05-10-2012 |
20130007342 | STORAGE SYSTEM HAVING VOLATILE MEMORY AND NON-VOLATILE MEMORY - A storage system including: a plurality of storage devices; a volatile memory which temporarily stores data; a nonvolatile memory; a battery saving power; a cache control unit which sets, according to battery charging rate of the battery, a part of the data stored in the volatile memory as save target data which are to be saved to the nonvolatile memory when power interruption occurs, and saves the part of the data, which is set as the save target data, to the nonvolatile memory by using power of the battery when power interruption occurs. | 01-03-2013 |
Patent application number | Description | Published |
20080215812 | Storage system having dynamic volume allocation function - Access to a plurality of logical devices is enabled regardless of the number of ports provided in a storage system and the number of logical devices that can be allocated to a single port, thereby improving the usability of the logical devices. A storage system comprises a plurality of logical devices, a target device which is the object of access from a computer, and a juke box system for allocating one of the plurality of logical devices to the target device. The juke box system changes the logical device that is allocated to the target device in accordance with a request from the computer. | 09-04-2008 |
20080256317 | Storage system and computer system - A storage system that is capable of communicating with one or more host devices that issue a host input/output request, including two or more physical devices, one or more logical devices provided in the two or more physical devices, said logical devices each representing a logical volume provided in the two or more physical devices, one or more memories that store security information that is information corresponding with each of the one or more logical devices that serves to control access based on a host input/output request for the logical device, and a control device that controls access of a host input/output, said security information being used to permit or deny a read/write request requesting access to the first logical device, said read/write request including a logical unit number (LUN) related to the first logical. | 10-16-2008 |
20090089528 | STORAGE SYSTEM AND METHOD OF CONTROLLING THE SAME - A storage system is utilized to its fullest storage capacity by setting a write inhibitive attribute to a desired storage area of the storage system. The storage system has a logical volume in which data is stored and a control device which controls access to the data stored in the logical volume. A first area of a desired size is set in the logical volume, and an access control attribute is set to the first area. In response to a request made by a computer to perform access to the logical volume, the control device notifies the computer that the control device does not perform the access when an area designated by the access request contains at least a part of the first area and the access control attribute set to the first area inhibits the type of the access requested. | 04-02-2009 |
20100250886 | STORAGE SYSTEM HAVING DYNAMIC VOLUME ALLOCATION FUNCTION - Access to a plurality of logical devices is enabled regardless of the number of ports provided in a storage system and the number of logical devices that can be allocated to a single port, thereby improving the usability of the logical devices. A storage system comprises a plurality of logical devices, a target device which is the object of access from a computer, and a juke box system for allocating one of the plurality of logical devices to the target device. The juke box system changes the logical device that is allocated to the target device in accordance with a request from the computer. | 09-30-2010 |